24KWC/24PBC
Service Bulletin/Repair Instructions
Updated Sheppard Steering Gear Classification Tool link in Inspection Procedure
Vehicle report
2025 PETERBILT 389
Service bulletins
16 bulletinsTechnical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
24KWL/PBL
Service Bulletin/Repair Instructions
The verbiage in the Introduction section has been updated.
43-088
Service Bulletin/Repair Instructions
The procedure has been updated to include additional steps for verifying the software level on the vehicle electronic control unit (VECU2) and digital display (DD). Steps have also been added to the PACCAR Common Rail Injection 2 (PCI2) software verification.
E318
Service Bulletin/Repair Instructions
The Condition, Chassis Affected, Service Action, Warranty, and Procedure sections have been updated to include the latest prognostics bulletin verbiage. The Warranty section has also been updated to include Peterbilt specific SRT codes for filing cross-division repairs.
43-080
Service Bulletin/Repair Instructions
KW: A new recommended repair has been added to verify the software level and close the campaign in SIR.The repair procedure has been updated with additional note boxes for clear instructions. PB: The repair procedure has been updated with additional note boxes for clear instructions.
43-087
Service Bulletin/Repair Instructions
(KW) Certain T680 / T800 / T880 / W900 / W990 have updated GHG labels available for order and installation.
E338
Service Campaign
Certain EPA21 PACCAR MX engines are equipped with PHINIA fuel injectors that do not meet PHINIA’s manufacturing specifications.
E326
Emissions
EPA17-24 MX Fuel Injector Connector - This bulletin has been revised to include all EPA17-24 and CARB24 PACCAR MX engines.
45-070
Service Bulletin/Repair Instructions
Procedure pictures updated for clarity. When troubleshooting Cummins X15 fault codes 555 or 556, follow this additional testing, inspection, and documentation procedure to help identify the root cause of dusted engines. This is not a stand-alone process but must be used alongside Cummins troubleshooting steps. Cummins Quickserve will reference this bulletin for fault codes 555 or 556.
CE033
Warranty Program/Extension
32 fuel injector part numbers (16 for MX-11 and 16 for MX-13) have been added to this warranty policy.
43-080 PB
Service Campaign
As of 03/25/2025, this campaign has resumed. Software updates are now available to complete this campaign.
E327
Emissions
Vehicles equipped with PACCAR MX engines with Engine Software Version NA202 or NA206 may display a dash STOP lamp incorrectly. PCI-2 software on these chassis must be reverted from NA202 to NA201 (Pack 2 injectors) or from NA206 to NA191 (Pack 1 injectors) to prevent incorrect STOP lamp display. 11014768 20250304 E327 20250227 E327 Emissions PETERBILT 365 2024 ENGINE Vehicles equipped with PACCAR MX engines with Engine Software Version NA202 or NA206 may display a dash STOP lamp incorrectly. PCI-2 software on these chassis must be reverted from NA202 to NA201 (Pack 2 injectors) or from NA206 to NA191 (Pack 1 injectors) to prevent incorrect STOP lamp display.
24PBL
Service Bulletin/Repair Instructions
Safety Recall Updated software and procedures are now available. Certain Vehicle Model Year 2021-2025 Peterbilt chassis configured for trailer towing require a software update for the Bendix EC80 ABS ECU. Software update procedures for certain Battery-Electric Vehicles (BEV) and EC80 ABS ECU part numbers are not yet available. This bulletin will be updated when software update procedures are available for these chassis. Safety Recall publish date: 1/10/25
E290
Service Bulletin/Repair Instructions
FIX-AS-FAIL Updated to include EPA2024 compliant engines. Fuel Filters must be changed before first cleaning. EPA2021 injector cleaning is referenced in RMI for certain injector faults. Complete the procedures in E290. Discard any previous versions of E290 procedures – always use the most current document from the link in the bulletin.
27-010
Service Bulletin/Repair Instructions
Fix As Fail Approximately 150 chassis built with an Allison 6th Gen 4500 series 6-speed transmission were assembled with the incorrect transmission harness. A procedure to re-pin transmission harness has been developed. Fix-as-Fail start date is 09/18/2024.
15-031
Service Bulletin/Repair Instructions
This Bulletin contains parts ordering and replacement procedures for Steering Gears identified as SUSPECT under 24PBC ONLY. Steering Gears repaired under this bulletin MUST be entered into the Serial Number Tracking Form for 24PBC.
Reading this report
Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.